How to make a 2d cloud texture more "stylized"?
I'm not sure exactly what you're going for, but you could try something like this.

The general idea is that I made the cloud &quot;clusters&quot; by using a Noise texture to slightly warp the input vector of a Voronai Texture. Doing this, and choosing the distance output of the Voronai texture can create &quot;warped circles&quot;, which can be more tightly defined with a ColorRamp. This only makes the spaces where the clouds will go - to get the slightly fluffy look, I used a different Noise Texture to &quot;fill in the gaps&quot;. This gives more (and separate) control of the cloud look, without affecting the edge detail.
To achieve the final look, I tinted the dark values from the Noise Ttexture to be the same color as the sky, and then added the values to the sky color, using the Voronai &quot;warped circles&quot; as a mix factor. You can control the detail of the clouds using both the Scale and Detail values of the Noise Texture, as well as through manipulation of the ColorRamp(s).
You can then render the image and take it into the compositor and apply a filter. &quot;Sharpen&quot; or Shadow&quot; seem to be a good place to start.